Previous Conferences & Workshops

Mar
28
2023

Special Year Research Seminar

Recognizing Groups in Erdős Geometry and Model Theory
Artem Chernikov
3:30pm|Simonyi 101 and Remote Access

Erdős-style geometry is concerned with combinatorial questions about simple geometric objects, such as counting incidences between finite sets of points, lines, etc. These questions can be typically viewed as asking for the possible number of...

Mar
28
2023

Special Year Research Seminar

On the Maximum of a Twisted Divisor Function
Dimitris Koukoulopoulos
2:00pm|Simonyi 101 and Remote Access

Given $n\in\mathbb{N}$ and $\xi\in\mathbb{R}$, let $\tau(n;\xi)=\sum_{d|n}d^{i\xi}$. Hall and Tenenbaum asked in their book \textit{Divisors} what is the value of $\max_{\xi\in[1,2]} |\tau(n;\xi)|$ for a ``typical'' integer $n$. I will present work...

Mar
28
2023

Computer Science/Discrete Mathematics Seminar II

The Lens of Abelian Embeddings
10:30am|Simonyi Hall 101 and Remote Access

A predicate $P:\Sigma^k \to {0,1}$ is said to be linearly embeddable if the set of assignments satisfying it can be embedded in an Abelian group. 

In this talk, we will present this notion and mention problems it relates to from various areas...

Mar
27
2023

Joint PU/IAS Arithmetic Geometry

On the geometry of p-adic Shimura varieties
Mingjia Zhang
4:30pm|Simonyi Hall 101 and Remote Access

Shimura varieties play an important role in the Langlands program. In this talk I will explain a conjectural fiber product structure on them as p-adic adic spaces, which generalizes the fiber product formula of Mantovan. To understand the conjecture...

Mar
27
2023

Joint IAS/Princeton University Symplectic Geometry Seminar

A Coproduct Structure on Symplectic Cohomology
Lea Kenigsberg
4:00pm|Fine 314 and Remote Access

I will discuss coproduct structures and why we care about them. Then I will define a new coproduct structure on symplectic cohomology and indicate how to compute it in an example.

Mar
27
2023

Marston Morse Lectures

Connes Embedding Problem, Kirchberg's Conjecture and Tsirelson's Problem
Thomas Vidick
11:15am|Simonyi Hall 101 and Remote Access - see Zoom link below

The three problems referred to in the title originate in the theory of von Neumann algebras, C* algebras, and quantum information theory respectively. Each of them has been a deep long-standing open problem in its respective area. Surprisingly, the...

Mar
24
2023

Probability Seminar

Topic #1 (Aru): A few recent stories about the Gaussian free field; Topic #2 (Ding): Long range order for three-dimensional random field Ising model
Juhan Aru and Jian Ding
10:15am|Simonyi 101 and Remote Access

Aru Abstract: In the first story we wonder about the ubiquity of the free field and look at a few characterisation theorems. In the second story we discuss the mutually benefiting relationship between the discrete free field and the O(N) spin model...

Mar
23
2023

Joint IAS/PU Number Theory Seminar

The Nonvanishing of Selmer Groups for Certain Symplectic Galois Representations
Samuel Mundy
4:30pm|Princeton University, Fine Hall 214

Given an automorphic representation \pi of SO(n,n+1) with certain nice properties at infinity, one can nowadays attach to \pi a p-adic Galois representation R of dimension 2n. The Bloch--Kato conjectures then predict in particular that if the L...